Create M1 Build Variant

[phillipjohnston]

I have received emails from M1 users, and I realize now that I need to get a 64-bit MacOS Darwin variant working and tested. One thing to investigate that is noted is wchar_t type mismatches. Catch2 tests (through printf) also not working - likely need a dependency update (and I need to check against the new version we will switch to)

[phillipjohnston]

printf test compilation errors reported via user:

Compiling C++ object printf_tests.p/subprojects_printf_test_test_suite.cpp.o FAILED: printf_tests.p/subprojects_printf_test_test_suite.cpp.o c++ -Iprintf_tests.p -I. -I.. -Isubprojects/printf/test -I../subprojects/printf/test -I../arch/aarch64/include -I../arch/aarch64/include/_types -fcolor-diagnostics -Wall -Winvalid-pch -Wnon-virtual-dtor -std=c++11 -O0 -g -MD -MQ printf_tests.p/subprojects_printf_test_test_suite.cpp.o -MF printf_tests.p/subprojects_printf_test_test_suite.cpp.o.d -o printf_tests.p/subprojects_printf_test_test_suite.cpp.o -c ../subprojects/printf/test/test_suite.cpp In file included from ../subprojects/printf/test/test_suite.cpp:31: ../subprojects/printf/test/catch.hpp:6317:13: error: unrecognized instruction mnemonic, did you mean: bit, cnt, hint, ins, not? CATCH_BREAK_INTO_DEBUGGER(); ^ ../subprojects/printf/test/catch.hpp:6035:79: note: expanded from macro 'CATCH_BREAK_INTO_DEBUGGER' #define CATCH_BREAK_INTO_DEBUGGER() []{ if( Catch::isDebuggerActive() ) { CATCH_TRAP(); } }() ^ ../subprojects/printf/test/catch.hpp:6014:34: note: expanded from macro 'CATCH_TRAP' #define CATCH_TRAP() __asm__("int $3\n" : : ) /* NOLINT */ ^ :1:2: note: instantiated into assembly here int $3 ^ 1 error generated. ninja: build stopped: subcommand failed. “`

[phillipjohnston]

Unused argument (I mean, I don't even enable this)

clang: warning: argument unused during compilation: '-fstack-clash-protection' 

[phillipjohnston]

Sample wchar_t related type mismatches, it seems all related functions generate warnings due to prototype mismatches.

[152/166] Building C object src/CMakeFiles/c.dir/wchar/iswspace.c.o In file included from /Users/bs/cmake/libc-skeleton/src/wchar/iswspace.c:1: /Users/bs/cmake/libc-skeleton/include/wchar.h:23:10: warning: incompatible redeclaration of library function 'wcschr' [-Wincompatible-library-redeclaration] wchar_t* wcschr(const wchar_t*, wchar_t); ^ /Users/bs/cmake/libc-skeleton/include/wchar.h:23:10: note: 'wcschr' is a builtin with type 'int *(const int *, int)' /Users/bs/cmake/libc-skeleton/include/wchar.h:37:5: warning: incompatible redeclaration of library function 'wcscmp' [-Wincompatible-library-redeclaration] int wcscmp(const wchar_t*, const wchar_t*); ^ /Users/bs/cmake/libc-skeleton/include/wchar.h:37:5: note: 'wcscmp' is a builtin with type 'int (const int *, const int *)'